blob: abc4b2a40532f42033e2c0a22ee3da7324beabb4 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
|
/*
* Copyright (C) 2011 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.google.gson.internal;
import java.io.IOException;
import java.io.InvalidObjectException;
import java.io.ObjectInputStream;
import java.io.ObjectStreamException;
import java.math.BigDecimal;
/**
* This class holds a number value that is lazily converted to a specific number type
*
* @author Inderjeet Singh
*/
@SuppressWarnings("serial") // ignore warning about missing serialVersionUID
public final class LazilyParsedNumber extends Number {
private final String value;
/** @param value must not be null */
public LazilyParsedNumber(String value) {
this.value = value;
}
@Override
public int intValue() {
try {
return Integer.parseInt(value);
} catch (NumberFormatException e) {
try {
return (int) Long.parseLong(value);
} catch (NumberFormatException nfe) {
return new BigDecimal(value).intValue();
}
}
}
@Override
public long longValue() {
try {
return Long.parseLong(value);
} catch (NumberFormatException e) {
return new BigDecimal(value).longValue();
}
}
@Override
public float floatValue() {
return Float.parseFloat(value);
}
@Override
public double doubleValue() {
return Double.parseDouble(value);
}
@Override
public String toString() {
return value;
}
/**
* If somebody is unlucky enough to have to serialize one of these, serialize
* it as a BigDecimal so that they won't need Gson on the other side to
* deserialize it.
*/
private Object writeReplace() throws ObjectStreamException {
return new BigDecimal(value);
}
private void readObject(ObjectInputStream in) throws IOException {
// Don't permit directly deserializing this class; writeReplace() should have written a replacement
throw new InvalidObjectException("Deserialization is unsupported");
}
@Override
public int hashCode() {
return value.hashCode();
}
@Override
public boolean equals(Object obj) {
if (this == obj) {
return true;
}
if (obj instanceof LazilyParsedNumber) {
LazilyParsedNumber other = (LazilyParsedNumber) obj;
return value == other.value || value.equals(other.value);
}
return false;
}
}
|
